www.coolmath.com/reference/triangles-geometry

Definitions and formulas for the area of a triangle, the sum of the angles of a
triangle, the Pythagorean theorem, Pythagorean triples and special triangles (the
...

www.mathwarehouse.com/geometry/triangles/triangle-formulas.php

Triangle formulas with pictures and links to lessons on each one. ... Triangle
Formulas, Lessons and Links ... Geometric Mean (For Right Similar Triangles).

lasp.colorado.edu/~bagenal/MATH/math3.html

Triangles, as the prefix tri suggests, are closed geometrical figures that have ...
One can prove - as you probably did long time ago in your geometry class - that
the ... Notice that the value of p comes in again into this formula (as it does for any
...

www.reference.com/math/geometry-formulas-triangles-cf6c1471c9b21b22

A triangle is a three-sided polygon where the sum of its interior angles equals
180 degrees. Some common formulas for triangles include perimeter, the total
sum ...

www.mathplanet.com/education/pre-algebra/right-triangles-and-algebra/the-pythagorean-theorem

One of the best known mathematical formulas is Pythagorean Theorem, which ...
A right triangle consists of two legs and a hypotenuse. .... Introducing geometry.

www.analyzemath.com/Geometry/formulas/table_formulas_geometry.html

Some of the most useful formulas in geometry are presented. ... Triangle.
Perimeter = a + b + c. There are several formulas for the area. If the base b and
the ...

math2.org/math/geometry/areasvols.htm

equilateral triangle = (1/4) sqrt (3) a<sup>2</sup>. triangle given SAS = (1/2) a b sin C.
triangle given a,b,c = [sqrt] [s(s-a)(s-b)(s-c)] when s = (a+b+c)/2 (Heron's formula).

www.mathsisfun.com/triangle.html

Geometry Index · Interactive ... There are three special names given to triangles
that tell how many sides (or angles) are equal. There can be 3, ... (Note: You can
also calculate the area from the lengths of all three sides using Heron's Formula.)
...

www.mathportal.org/calculators/plane-geometry-calculators/right-triangle-calculator.php

Calculator that shows work to solve right triangle problems. ... Calculators :: Plane
Geometry :: Right Triangle Calculator. warning: We've .... Math Formulas.

formulas.tutorvista.com/math/triangle-formulas.html

A triangle can be defined as the polygon having 3 sides and 3 internal angles.
The length of the sides of a triangle may be same or different. If all the 3 sides of a
...